CVE-2021-47403

Severity CVSS v4.0:

Pending analysis

Type:

CWE-200 Information Leak / Disclosure

Publication date:

21/05/2024

Last modified:

02/04/2025

Description

In the Linux kernel, the following vulnerability has been resolved: ipack: ipoctal: fix module reference leak A reference to the carrier module was taken on every open but was only released once when the final reference to the tty struct was dropped. Fix this by taking the module reference and initialising the tty driver data when installing the tty.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): High

Base Score 3.x

7.10

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	3.18 (including)	4.4.286 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5 (including)	4.9.285 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.249 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.209 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.151 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.71 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.14.10 (excluding)
cpe:2.3:o:linux:linux_kernel:5.15:rc1::::::
cpe:2.3:o:linux:linux_kernel:5.15:rc2::::::
cpe:2.3:o:linux:linux_kernel:5.15:rc3::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2021-47403

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools